type improvments

Added a global declaration for plotLineThick on the window object in bench-thick-improvements.ts for better type safety and Playwright/debug access. Updated bench2.js to simplify lineConfigs mapping. Added a global require comment in check-thick-line-playwright.js.

Author: danchitnis

benchmark/bench-thick-improvements.ts

@@ -1,5 +1,11 @@
 import { setupCanvasAndWebGL, WebglLineThick, clearCanvas, LineConfig } from "../src/webglplot";
 
+declare global {
+  interface Window {
+    plotLineThick: WebglLineThick;
+  }
+}
+
 const fpsElem = document.getElementById("fps");
 const statusElem = document.getElementById("status");
 
@@ -15,7 +21,7 @@ const gl = setupCanvasAndWebGL(canvas, {
 });
 
 const plotLine = new WebglLineThick(gl, 10);
-(window as any).plotLineThick = plotLine; // Expose for Playwright/debug reads
+window.plotLineThick = plotLine; // Expose for Playwright/debug reads
 
 let frameCount = 0;
 let lastTime = performance.now();

benchmark/bench2.js

@@ -30,7 +30,7 @@ const createLines = (num) => {
   plotLine = new WebglLinePlot(gl, lines.length);
 
   // Initialize lines with WebglLinePlot
-  const lineConfigs = lines.map((line, index) => ({
+  const lineConfigs = lines.map(() => ({
     points: new Float32Array(numX * 2), // Will be updated in render loop
     color: [Math.random(), Math.random(), Math.random(), 1],
     thickness: 1.0,

benchmark/check-thick-line-playwright.js

@@ -1,3 +1,4 @@
+/* global require */
 const { chromium } = require("playwright");
 
 // Render a single line (horizontal or vertical) with a given transform and measure its pixel thickness.